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公开(公告)号：US10851217B2
公开(公告)日：2020-12-01
申请号：US15756815
申请日：2016-08-31
发明人： Junichi Aoki , Koji Furukawa , Kyoko Tamaru , Atsuhito Arai , Hiroaki Sakata , Takashi Ochi
IPC分类号： C08J5/24 , B32B27/18 , B32B27/26 , B32B27/38 , C08G59/32 , C08G59/38 , C08G59/50 , C08G59/56 , C08L63/00 , C08J5/04
摘要： Provided are: an epoxy resin composition that gives a carbon fiber-reinforced composite material having excellent moldability, heat resistance, and mechanical properties such as tensile strength and compressive strength; and a prepreg. An epoxy resin composition containing at least the following constituent elements [A]-[D]. The epoxy resin composition contains 5-50 parts by mass of constituent element [A] and 20-95 parts by mass of constituent element [B], as well as 1-25 parts by mass of constituent element [C], relative to 100 parts by mass of the total amount of epoxy resin. Constituent element [A] is an epoxy resin having primarily two epoxy groups and one or more condensed polycyclic aromatic hydrocarbon skeletons within a repeating unit of a specific structure; [B] is a glycidylamine epoxy resin having three or more glycidyl groups in the molecule; [C] is a sulfone or imide thermoplastic resin; and [D] is an epoxy resin curing agent.
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公开(公告)号：US20180244880A1
公开(公告)日：2018-08-30
申请号：US15756815
申请日：2016-08-31
发明人： Junichi Aoki , Koji Furukawa , Kyoko Tamaru , Atsuhito Arai , Hiroaki Sakata , Takashi Ochi
摘要： Provided are: an epoxy resin composition that gives a carbon fiber-reinforced composite material having excellent moldability, heat resistance, and mechanical properties such as tensile strength and compressive strength; and a prepreg. An epoxy resin composition containing at least the following constituent elements [A]-[D]. The epoxy resin composition contains 5-50 parts by mass of constituent element [A] and 20-95 parts by mass of constituent element [B], as well as 1-25 parts by mass of constituent element [C], relative to 100 parts by mass of the total amount of epoxy resin. Constituent element [A] is an epoxy resin having primarily two epoxy groups and one or more condensed polycyclic aromatic hydrocarbon skeletons within a repeating unit of a specific structure; [B] is a glycidylamine epoxy resin having three or more glycidyl groups in the molecule; [C] is a sulfone or imide thermoplastic resin; and [D] is an epoxy resin curing agent.
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